JLindley
Well-Known Member
- Joined
- October 25, 2010
- Messages
- 113
- Reaction score
- 1
- City, State
- North Carolina
- Year, Model & Trim Level
- '02 Ex XLT, '97 Ex EB
I've been running Motorcraft 5w-30, motorcraft filter since I bought the car back in 12-31-05 and it had 50,000 miles on it at that time. The X was previously a lease/demo car so it had to be maintained during that time. I have changed the oil every 3,500 miles since then. So my X has always been well maintained since new. My Explorer currently has 193,000 miles on it. The timing chain would rattle sooner than it use too towards the end of the oil life with motorcraft. It would really rattle in the winter time. And the oil has beginning to seep at the rear main seal. Its not dripping on the ground or anything. So i decided to switch to mobil 1 synthetic high mileage 5w-30 yesterday and it immediately runs much quieter "no chain rattle" And im hoping that the synthetic oil will condition the older seals and swell them back up. I want to know yal opinion, was it ok to switch this late in the game??
By the way my X has the 4.0L SOHC V6 and this motor has never been worked on!! Everything on this motor is original except for the thermostat, thermostat housing, serpentine belt and the spark plugs.
By the way my X has the 4.0L SOHC V6 and this motor has never been worked on!! Everything on this motor is original except for the thermostat, thermostat housing, serpentine belt and the spark plugs.